Electrical apparatus e.g. remote control switch, has fixed and movable walls between which viscous fluid substance is sandwiched in conduction and isolation positions and in intermediate positions between conduction and isolation positions

摘要

The apparatus (1) has a movable wall (69B) mechanically connected to a conducting brush (40), and moved relative to a fixed wall (12B) when the brush moves between conduction and isolation positions. A viscous fluid substance (57B) is sandwiched between the walls in the conduction and isolation positions and in each of intermediate positions between the conduction and isolation positions. A movable contact (5) carried by the brush is applied against a fixed contact (4B) in the conduction position, and is separated from the fixed contact in the isolation position.